You'd think with the reputation of LLMs being trained on Twitter (pre-Musk radicalization) and Reddit, they'd be better at understanding normal conversation flow since twitter requires short responses and Reddit... while Wall of Text happens occasionally, it's not the typical cadence of the discussion.
Twitter, Reddit, HN don't always have the consistency of conversation that two people talking do.
Even here, I'm responding to you on a thread that I haven't been in on previously.
There's also a lot more material out there in the format of Stack Exchange questions and answers, Quora posts, blog posts and such than there is for consistent back and forth interplay between two people.
IRC chat logs might have been better...ish.
The cadence for discussion is unique to the medium in which the discussion happens. What's more, the prompt may require further investigation and elaboration prior to a more complete response, while other times it may be something that requires story telling and making it up as it goes.
Reddit and Twitter don't have human conversations. They have exchanges of confident assertions followed with rebuttals. In fact, both of our comments are perfect demonstrations of exactly that too. Fairly reflective of how LLMs behave — except nobody wants to "argue" with an LLM like Twitter and Reddit users want to.
This is not how humans converse in human social settings. The medium is the message, as they say.